August weather forecast
Fort Myers Beach, FL

Weather in August

The last month of the summer, August, is another tropical month in Fort Myers Beach, Florida, with temperature in the range of an average low of 81.1°F (27.3°C) and an average high of 88°F (31.1°C).

Temperature

August is the warmest month, with an average high-temperature of 88°F (31.1°C) and an average low-temperature of 81.1°F (27.3°C).

Heat index

In August, the average heat index is estimated at a very hot 101.8°F (38.8°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'real feel', 'felt air temperature', or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional factors like pregnancy, wind, clothing, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

March, May, July, August and October, with an average relative humidity of 73%, are the least humid months in Fort Myers Beach, Florida.

Rainfall

August is the month with the most rainfall. Rain falls for 27.3 days and accumulates 8.54" (217mm) of precipitation.

Ocean temperature

August is the month with the warmest seawater, with an average ocean temperature of 87.3°F (30.7°C).
Note: The surface water temperatures above 86°F (30°C) are arguably considered as unpleasant for swimming, and any intense water activity, as the refreshing effect of water is missing.

Daylight

In Fort Myers Beach, the average length of the day in August is 13h and 2min.
On the first day of August, sunrise is at 6:53 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 7:48 pm EDT.

Sunshine

In Fort Myers Beach, the average sunshine in August is 9.6h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In August, the average maximum UV index of 7 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
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FAQ

What is the warmest month in Fort Myers Beach?

August is the warmest month in Fort Myers Beach, Florida, with an average high-temperature of 88°F (31.1°C) and an average low-temperature of 81.1°F (27.3°C).

What is the temperature in August in Fort Myers Beach?

In August, in Fort Myers Beach, the average high-temperature is 88°F (31.1°C), and the average low-temperature is 81.1°F (27.3°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is estimated at 101.8°F (38.8°C).

What are the least humid months in Fort Myers Beach?

The months with the lowest humidity in Fort Myers Beach, Florida, are March, May, July, August and October, with an average relative humidity of 73%.

What is the average humidity in August in Fort Myers Beach?

In Fort Myers Beach, the average relative humidity in August is 73%.

What is the rainiest month in Fort Myers Beach?

The month with the most rainfall is August, when the rain falls for 27.3 days and typically aggregates up to 8.54" (217mm) of precipitation.

How much does it rain in Fort Myers Beach in August?

In August, in Fort Myers Beach, Florida, the rain falls for 27.3 days. Throughout August, 8.54" (217mm) of precipitation is accumulated.

What month is the ocean warmest in Fort Myers Beach?

The month with the warmest seawater is August, with an average ocean temperature of 87.3°F (30.7°C).

How warm is the water in August in Fort Myers Beach?

In August, the average ocean temperature in Fort Myers Beach is 87.3°F (30.7°C). The surface water temperatures above 86°F (30°C) are arguably considered as unpleasant for swimming, and any intense water activity, as the refreshing effect of water is missing.

How many hours of daylight does Fort Myers Beach have in August?

In August, the average day length is 13h and 2min.

When is the sunrise / sunset in August in Fort Myers Beach?

On the first day of August in Fort Myers Beach, Florida, sunrise is at 6:53 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 7:48 pm EDT.

How many hours of sunshine does Fort Myers Beach have in August?

The average sunshine duration in August in Fort Myers Beach, Florida, is 9.6h.

What are the months with the highest UV index in Fort Myers Beach?

May through September, with an average maximum UV index of 7, are months with the highest UV index in Fort Myers Beach.

What is the UV index intensity in August in Fort Myers Beach?

In Fort Myers Beach, Florida, the average daily maximum UV index in August is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.

Average temperature in August
Fort Myers Beach, FL

Average temperature in August - Fort Myers Beach, FL
  • Average high temperature in August: 88°F

The warmest month (with the highest average high temperature) is August (88°F).
The month with the lowest average high temperature is January (69.8°F).

  • Average low temperature in August: 81.1°F

The month with the highest average low temperature is August (81.1°F).
The coldest month (with the lowest average low temperature) is January (59.5°F).

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Average pressure in August
Fort Myers Beach, FL

Average pressure in August - Fort Myers Beach, FL
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is September (29.95"Hg).

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Average wind speed in August
Fort Myers Beach, FL

Average wind speed in August - Fort Myers Beach, FL
  • Average wind speed in August: 7.3mph

The windiest months (with the highest average wind speed) are October and November (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).

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Average humidity in August
Fort Myers Beach, FL

Average humidity in August - Fort Myers Beach, FL
  • Average humidity in August: 73%

The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are March, May, July, August and October (73%).

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Average rainfall in August
Fort Myers Beach, FL

Average rainfall in August - Fort Myers Beach, FL
  • Average rainfall in August: 8.54"

The wettest month (with the highest rainfall) is August (8.54").
The driest month (with the least rainfall) is February (1.06").

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Average rainfall days in August
Fort Myers Beach, FL

Average rainfall days in August - Fort Myers Beach, FL
  • Average rainfall days in August: 27.3 days

The month with the highest number of rainy days is August (27.3 days).
The month with the least rainy days is February (8.2 days).

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Average sea temperature in August
Fort Myers Beach, FL

Average sea temperature in August - Fort Myers Beach, FL
  • Average sea temperature in August: 87.2°F

The best month for swimming (with the highest average sea temperature) is August (87.2°F).
The coldest month (with the lowest average sea temperature) is January (66.6°F).

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Average daylight in August /
Average sunshine in August
Fort Myers Beach, FL

Average daylight in August / Average sunshine in August - Fort Myers Beach, FL
  • Average daylight in August: 13h and 2min

The month with the longest days is June (Average daylight: 13h and 46min).
The month with the shortest days is December (Average daylight: 10h and 31min).

  • Average sunshine in August: 9h and 36min

The month with the most sunshine is May (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).

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Average sunshine days in August
Fort Myers Beach, FL

Average sunshine days in August - Fort Myers Beach, FL
  • Average sunshine days in August: 2.3 days

The month with the most sunshine days is January (19.8 days).
The month with the least sunshine days is August (2.3 days).

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Average UV index in August
Fort Myers Beach, FL

Average UV index in August - Fort Myers Beach, FL
  • Average UV index in August: 7

The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January and February (UV index 5).

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Average cloud cover in August
Fort Myers Beach, FL

Average cloud cover in August - Fort Myers Beach, FL
  • Average cloud cover in August: 28

The month with the most cloud cover is January (Cloud cover 29).
The months with the least cloud cover are March and May (Cloud cover 23).

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Average visibility in August
Fort Myers Beach, FL

Average visibility in August - Fort Myers Beach, FL
  • Average visibility in August: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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